CT scans use X-rays and computer technology to produce detailed cross-sectional images of the body. A CT scan machine contains an X-ray tube, detectors, and a gantry that rotates around the patient. During a scan, X-rays pass through the body and are detected, with the data reconstructed into images that are analyzed by radiologists. CT scans are useful for diagnosing many conditions like cancer, injuries, and cardiovascular issues. While they provide valuable information, CT scans do expose patients to radiation.